Algebra 2

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Amanda surveyed 20 juniors and seniors at Delamar high school to find the number of hours per week they spend working at part-time jobs. Her results are shown below.
Juniors: 20,10,20,10,15,0,0,10,20,15
Seniors: 20,20,10,10,0,0,0,10,0,10

which statement about the data is true?

1.the range of hours worked is the same for juniors and seniors
2.the mean, medium,and mode for the juniors surveyed fall within a 3-hour range
3. the mean number of hours worked by the seniors surveyed is 12.
4. The mean number of hours worked is the same for junior and seniors.

  • Algebra 2 -

    I'll be glad to check your answer.

  • Algebra 2 -

    c.

  • Algebra 2 -

    or 3 i think?

  • Algebra 2 -

    No.

  • Algebra 2 -

    4.

  • Algebra 2 -

    No.

    Be sure you know the meanings of these terms.

  • Algebra 2 -

    2.

  • Algebra 2 -

    Has to be 2.

  • Algebra 2 -

    For heavens sake look up the definition of these terms instead of guessing !!!

  • Algebra 2 -

    the answer is 2. if you do the work. it isn't that difficult. Add the data for the seniors and divide by 10 then do the same for the juniors.

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